Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/95288
Title: Thermal decomposition of precursors for BaBiO3 prepared with amino acid complexes
Authors: Jaenicke, S. 
Chuah, G.K. 
Khor, S.T.
Issue Date: 22-Mar-1993
Citation: Jaenicke, S.,Chuah, G.K.,Khor, S.T. (1993-03-22). Thermal decomposition of precursors for BaBiO3 prepared with amino acid complexes. Thermochimica Acta 216 (C) : 285-300. ScholarBank@NUS Repository.
Abstract: BaBiO3 was prepared by several chemical and physical methods. The decomposition behaviour of the precursors was investigated using thermogravimetry, differential scanning calorimetry, evolved gas analysis, infrared spectroscopy and X-ray diffraction techniques. The self-propagating chemical decomposition (SCD) of the complexes with amino acids is compared with the decomposition of physical mixtures of barium and bismuth nitrates, with and without the addition of amino acids. Carbonate was detected as an intermediate from the IR spectra and was subsequently identified as BaBiO3 by XRD. No complex carboxylate, such as Ba2Bi2O5CO3, was detected. Carbonates formed by SCD required very high temperatures, in excess of 950°C, before they decomposed. Hence, the BaBiO3 obtained by this method was contaminated with BaCO3. The intermediate carbonates which formed in mixtures with amino acids decompose at slightly lower temperatures,
Source Title: Thermochimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/95288
ISSN: 00406031
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

33
checked on Sep 21, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.